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d051854ccaabe1c79b84e13e58e4b369a73f66fd
third_party_mesa3d/src/gallium/frontends/dri/utils.c
Dave Airlie d051854cca treewide: drop mtypes/macros includes from main 
These aren't required in lots of places, so remove them.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14127>
2021-12-08 22:14:45 +00:00

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/*
* (C) Copyright IBM Corporation 2002, 2004
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file utils.c
* Utility functions for DRI drivers.
*
* \author Ian Romanick <idr@us.ibm.com>
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include "main/cpuinfo.h"
#include "main/extensions.h"
#include "utils.h"
#include "dri_util.h"
/* WARNING: HACK: Local defines to avoid pulling glx.h.
*
* Any parts of this file that use the following defines are either partial or
* entirely broken wrt EGL.
*
* For example any getConfigAttrib() or indexConfigAttrib() query from EGL for
* SLOW or NON_CONFORMANT_CONFIG will not work as expected since the EGL tokens
* are different from the GLX ones.
*/
#define GLX_NONE 0x8000
#define GLX_SLOW_CONFIG 0x8001
#define GLX_NON_CONFORMANT_CONFIG 0x800D
#define GLX_DONT_CARE 0xFFFFFFFF
/**
* Create the \c GL_RENDERER string for DRI drivers.
*
* Almost all DRI drivers use a \c GL_RENDERER string of the form:
*
* "Mesa DRI <chip> <driver date> <AGP speed) <CPU information>"
*
* Using the supplied chip name, driver data, and AGP speed, this function
* creates the string.
*
* \param buffer Buffer to hold the \c GL_RENDERER string.
* \param hardware_name Name of the hardware.
* \param agp_mode AGP mode (speed).
*
* \returns
* The length of the string stored in \c buffer. This does \b not include
* the terminating \c NUL character.
*/
unsigned
driGetRendererString( char * buffer, const char * hardware_name,
GLuint agp_mode )
{
unsigned offset;
char *cpu;
offset = sprintf( buffer, "Mesa DRI %s", hardware_name );
/* Append any AGP-specific information.
*/
switch ( agp_mode ) {
case 1:
case 2:
case 4:
case 8:
offset += sprintf( & buffer[ offset ], " AGP %ux", agp_mode );
break;
default:
break;
}
/* Append any CPU-specific information.
*/
cpu = _mesa_get_cpu_string();
if (cpu) {
offset += sprintf(buffer + offset, " %s", cpu);
free(cpu);
}
return offset;
}
/**
* Creates a set of \c struct gl_config that a driver will expose.
*
* A set of \c struct gl_config will be created based on the supplied
* parameters. The number of modes processed will be 2 *
* \c num_depth_stencil_bits * \c num_db_modes.
*
* For the most part, data is just copied from \c depth_bits, \c stencil_bits,
* \c db_modes, and \c visType into each \c struct gl_config element.
* However, the meanings of \c fb_format and \c fb_type require further
* explanation. The \c fb_format specifies which color components are in
* each pixel and what the default order is. For example, \c GL_RGB specifies
* that red, green, blue are available and red is in the "most significant"
* position and blue is in the "least significant". The \c fb_type specifies
* the bit sizes of each component and the actual ordering. For example, if
* \c GL_UNSIGNED_SHORT_5_6_5_REV is specified with \c GL_RGB, bits [15:11]
* are the blue value, bits [10:5] are the green value, and bits [4:0] are
* the red value.
*
* One sublte issue is the combination of \c GL_RGB or \c GL_BGR and either
* of the \c GL_UNSIGNED_INT_8_8_8_8 modes. The resulting mask values in the
* \c struct gl_config structure is \b identical to the \c GL_RGBA or
* \c GL_BGRA case, except the \c alphaMask is zero. This means that, as
* far as this routine is concerned, \c GL_RGB with \c GL_UNSIGNED_INT_8_8_8_8
* still uses 32-bits.
*
* If in doubt, look at the tables used in the function.
*
* \param ptr_to_modes Pointer to a pointer to a linked list of
* \c struct gl_config. Upon completion, a pointer to
* the next element to be process will be stored here.
* If the function fails and returns \c GL_FALSE, this
* value will be unmodified, but some elements in the
* linked list may be modified.
* \param format Mesa mesa_format enum describing the pixel format
* \param depth_bits Array of depth buffer sizes to be exposed.
* \param stencil_bits Array of stencil buffer sizes to be exposed.
* \param num_depth_stencil_bits Number of entries in both \c depth_bits and
* \c stencil_bits.
* \param db_modes Array of buffer swap modes. If an element has a
* value of \c __DRI_ATTRIB_SWAP_NONE, then it
* represents a single-buffered mode. Other valid
* values are \c __DRI_ATTRIB_SWAP_EXCHANGE,
* \c __DRI_ATTRIB_SWAP_COPY, and \c __DRI_ATTRIB_SWAP_UNDEFINED.
* They represent the respective GLX values as in
* the GLX_OML_swap_method extension spec.
* \param num_db_modes Number of entries in \c db_modes.
* \param msaa_samples Array of msaa sample count. 0 represents a visual
* without a multisample buffer.
* \param num_msaa_modes Number of entries in \c msaa_samples.
* \param enable_accum Add an accum buffer to the configs
* \param color_depth_match Whether the color depth must match the zs depth
* This forces 32-bit color to have 24-bit depth, and
* 16-bit color to have 16-bit depth.
*
* \returns
* Pointer to any array of pointers to the \c __DRIconfig structures created
* for the specified formats. If there is an error, \c NULL is returned.
* Currently the only cause of failure is a bad parameter (i.e., unsupported
* \c format).
*/
__DRIconfig **
driCreateConfigs(mesa_format format,
const uint8_t * depth_bits, const uint8_t * stencil_bits,
unsigned num_depth_stencil_bits,
const GLenum * db_modes, unsigned num_db_modes,
const uint8_t * msaa_samples, unsigned num_msaa_modes,
GLboolean enable_accum, GLboolean color_depth_match)
{
static const struct {
uint32_t masks[4];
int shifts[4];
} format_table[] = {
/* MESA_FORMAT_B5G6R5_UNORM */
{{ 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 },
{ 11, 5, 0, -1 }},
/* MESA_FORMAT_B8G8R8X8_UNORM */
{{ 0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000 },
{ 16, 8, 0, -1 }},
/* MESA_FORMAT_B8G8R8A8_UNORM */
{{ 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000 },
{ 16, 8, 0, 24 }},
/* MESA_FORMAT_B10G10R10X2_UNORM */
{{ 0x3FF00000, 0x000FFC00, 0x000003FF, 0x00000000 },
{ 20, 10, 0, -1 }},
/* MESA_FORMAT_B10G10R10A2_UNORM */
{{ 0x3FF00000, 0x000FFC00, 0x000003FF, 0xC0000000 },
{ 20, 10, 0, 30 }},
/* MESA_FORMAT_R8G8B8A8_UNORM */
{{ 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 },
{ 0, 8, 16, 24 }},
/* MESA_FORMAT_R8G8B8X8_UNORM */
{{ 0x000000FF, 0x0000FF00, 0x00FF0000, 0x00000000 },
{ 0, 8, 16, -1 }},
/* MESA_FORMAT_R10G10B10X2_UNORM */
{{ 0x000003FF, 0x000FFC00, 0x3FF00000, 0x00000000 },
{ 0, 10, 20, -1 }},
/* MESA_FORMAT_R10G10B10A2_UNORM */
{{ 0x000003FF, 0x000FFC00, 0x3FF00000, 0xC0000000 },
{ 0, 10, 20, 30 }},
/* MESA_FORMAT_RGBX_FLOAT16 */
{{ 0, 0, 0, 0},
{ 0, 16, 32, -1 }},
/* MESA_FORMAT_RGBA_FLOAT16 */
{{ 0, 0, 0, 0},
{ 0, 16, 32, 48 }},
};
const uint32_t * masks;
const int * shifts;
__DRIconfig **configs, **c;
struct gl_config *modes;
unsigned i, j, k, h;
unsigned num_modes;
unsigned num_accum_bits = (enable_accum) ? 2 : 1;
int red_bits;
int green_bits;
int blue_bits;
int alpha_bits;
bool is_srgb;
bool is_float;
switch (format) {
case MESA_FORMAT_B5G6R5_UNORM:
masks = format_table[0].masks;
shifts = format_table[0].shifts;
break;
case MESA_FORMAT_B8G8R8X8_UNORM:
case MESA_FORMAT_B8G8R8X8_SRGB:
masks = format_table[1].masks;
shifts = format_table[1].shifts;
break;
case MESA_FORMAT_B8G8R8A8_UNORM:
case MESA_FORMAT_B8G8R8A8_SRGB:
masks = format_table[2].masks;
shifts = format_table[2].shifts;
break;
case MESA_FORMAT_R8G8B8A8_UNORM:
case MESA_FORMAT_R8G8B8A8_SRGB:
masks = format_table[5].masks;
shifts = format_table[5].shifts;
break;
case MESA_FORMAT_R8G8B8X8_UNORM:
case MESA_FORMAT_R8G8B8X8_SRGB:
masks = format_table[6].masks;
shifts = format_table[6].shifts;
break;
case MESA_FORMAT_B10G10R10X2_UNORM:
masks = format_table[3].masks;
shifts = format_table[3].shifts;
break;
case MESA_FORMAT_B10G10R10A2_UNORM:
masks = format_table[4].masks;
shifts = format_table[4].shifts;
break;
case MESA_FORMAT_RGBX_FLOAT16:
masks = format_table[9].masks;
shifts = format_table[9].shifts;
break;
case MESA_FORMAT_RGBA_FLOAT16:
masks = format_table[10].masks;
shifts = format_table[10].shifts;
break;
case MESA_FORMAT_R10G10B10X2_UNORM:
masks = format_table[7].masks;
shifts = format_table[7].shifts;
break;
case MESA_FORMAT_R10G10B10A2_UNORM:
masks = format_table[8].masks;
shifts = format_table[8].shifts;
break;
default:
fprintf(stderr, "[%s:%u] Unknown framebuffer type %s (%d).\n",
__func__, __LINE__,
_mesa_get_format_name(format), format);
return NULL;
}
red_bits = _mesa_get_format_bits(format, GL_RED_BITS);
green_bits = _mesa_get_format_bits(format, GL_GREEN_BITS);
blue_bits = _mesa_get_format_bits(format, GL_BLUE_BITS);
alpha_bits = _mesa_get_format_bits(format, GL_ALPHA_BITS);
is_srgb = _mesa_is_format_srgb(format);
is_float = _mesa_get_format_datatype(format) == GL_FLOAT;
num_modes = num_depth_stencil_bits * num_db_modes * num_accum_bits * num_msaa_modes;
configs = calloc(num_modes + 1, sizeof *configs);
if (configs == NULL)
return NULL;
c = configs;
for ( k = 0 ; k < num_depth_stencil_bits ; k++ ) {
for ( i = 0 ; i < num_db_modes ; i++ ) {
for ( h = 0 ; h < num_msaa_modes; h++ ) {
for ( j = 0 ; j < num_accum_bits ; j++ ) {
if (color_depth_match &&
(depth_bits[k] || stencil_bits[k])) {
/* Depth can really only be 0, 16, 24, or 32. A 32-bit
* color format still matches 24-bit depth, as there
* is an implicit 8-bit stencil. So really we just
* need to make sure that color/depth are both 16 or
* both non-16.
*/
if ((depth_bits[k] + stencil_bits[k] == 16) !=
(red_bits + green_bits + blue_bits + alpha_bits == 16))
continue;
}
*c = malloc (sizeof **c);
modes = &(*c)->modes;
c++;
memset(modes, 0, sizeof *modes);
modes->floatMode = is_float;
modes->redBits = red_bits;
modes->greenBits = green_bits;
modes->blueBits = blue_bits;
modes->alphaBits = alpha_bits;
modes->redMask = masks[0];
modes->greenMask = masks[1];
modes->blueMask = masks[2];
modes->alphaMask = masks[3];
modes->redShift = shifts[0];
modes->greenShift = shifts[1];
modes->blueShift = shifts[2];
modes->alphaShift = shifts[3];
modes->rgbBits = modes->redBits + modes->greenBits
+ modes->blueBits + modes->alphaBits;
modes->accumRedBits = 16 * j;
modes->accumGreenBits = 16 * j;
modes->accumBlueBits = 16 * j;
modes->accumAlphaBits = 16 * j;
modes->stencilBits = stencil_bits[k];
modes->depthBits = depth_bits[k];
if (db_modes[i] == __DRI_ATTRIB_SWAP_NONE) {
modes->doubleBufferMode = GL_FALSE;
modes->swapMethod = __DRI_ATTRIB_SWAP_UNDEFINED;
}
else {
modes->doubleBufferMode = GL_TRUE;
modes->swapMethod = db_modes[i];
}
modes->samples = msaa_samples[h];
modes->sRGBCapable = is_srgb;
}
}
}
}
*c = NULL;
return configs;
}
__DRIconfig **driConcatConfigs(__DRIconfig **a,
__DRIconfig **b)
{
__DRIconfig **all;
int i, j, index;
if (a == NULL || a[0] == NULL)
return b;
else if (b == NULL || b[0] == NULL)
return a;
i = 0;
while (a[i] != NULL)
i++;
j = 0;
while (b[j] != NULL)
j++;
all = malloc((i + j + 1) * sizeof *all);
index = 0;
for (i = 0; a[i] != NULL; i++)
all[index++] = a[i];
for (j = 0; b[j] != NULL; j++)
all[index++] = b[j];
all[index++] = NULL;
free(a);
free(b);
return all;
}
#define __ATTRIB(attrib, field) case attrib: *value = config->modes.field; break
/**
* Return the value of a configuration attribute. The attribute is
* indicated by the index.
*/
static int
driGetConfigAttribIndex(const __DRIconfig *config,
unsigned int index, unsigned int *value)
{
switch (index + 1) {
__ATTRIB(__DRI_ATTRIB_BUFFER_SIZE, rgbBits);
__ATTRIB(__DRI_ATTRIB_RED_SIZE, redBits);
__ATTRIB(__DRI_ATTRIB_GREEN_SIZE, greenBits);
__ATTRIB(__DRI_ATTRIB_BLUE_SIZE, blueBits);
case __DRI_ATTRIB_LEVEL:
case __DRI_ATTRIB_LUMINANCE_SIZE:
case __DRI_ATTRIB_AUX_BUFFERS:
*value = 0;
break;
__ATTRIB(__DRI_ATTRIB_ALPHA_SIZE, alphaBits);
case __DRI_ATTRIB_ALPHA_MASK_SIZE:
/* I have no idea what this value was ever meant to mean, it's
* never been set to anything, just say 0.
*/
*value = 0;
break;
__ATTRIB(__DRI_ATTRIB_DEPTH_SIZE, depthBits);
__ATTRIB(__DRI_ATTRIB_STENCIL_SIZE, stencilBits);
__ATTRIB(__DRI_ATTRIB_ACCUM_RED_SIZE, accumRedBits);
__ATTRIB(__DRI_ATTRIB_ACCUM_GREEN_SIZE, accumGreenBits);
__ATTRIB(__DRI_ATTRIB_ACCUM_BLUE_SIZE, accumBlueBits);
__ATTRIB(__DRI_ATTRIB_ACCUM_ALPHA_SIZE, accumAlphaBits);
case __DRI_ATTRIB_SAMPLE_BUFFERS:
*value = !!config->modes.samples;
break;
__ATTRIB(__DRI_ATTRIB_SAMPLES, samples);
case __DRI_ATTRIB_RENDER_TYPE:
/* no support for color index mode */
*value = __DRI_ATTRIB_RGBA_BIT;
if (config->modes.floatMode)
*value |= __DRI_ATTRIB_FLOAT_BIT;
break;
case __DRI_ATTRIB_CONFIG_CAVEAT:
if (config->modes.accumRedBits != 0)
*value = __DRI_ATTRIB_SLOW_BIT;
else
*value = 0;
break;
case __DRI_ATTRIB_CONFORMANT:
*value = GL_TRUE;
break;
__ATTRIB(__DRI_ATTRIB_DOUBLE_BUFFER, doubleBufferMode);
__ATTRIB(__DRI_ATTRIB_STEREO, stereoMode);
case __DRI_ATTRIB_TRANSPARENT_TYPE:
case __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE: /* horrible bc hack */
*value = GLX_NONE;
break;
case __DRI_ATTRIB_TRANSPARENT_RED_VALUE:
case __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE:
case __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE:
case __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE:
*value = GLX_DONT_CARE;
break;
case __DRI_ATTRIB_FLOAT_MODE:
*value = config->modes.floatMode;
break;
__ATTRIB(__DRI_ATTRIB_RED_MASK, redMask);
__ATTRIB(__DRI_ATTRIB_GREEN_MASK, greenMask);
__ATTRIB(__DRI_ATTRIB_BLUE_MASK, blueMask);
__ATTRIB(__DRI_ATTRIB_ALPHA_MASK, alphaMask);
case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
case __DRI_ATTRIB_MAX_PBUFFER_PIXELS:
case __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH:
case __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT:
case __DRI_ATTRIB_VISUAL_SELECT_GROUP:
*value = 0;
break;
__ATTRIB(__DRI_ATTRIB_SWAP_METHOD, swapMethod);
case __DRI_ATTRIB_MAX_SWAP_INTERVAL:
*value = INT_MAX;
break;
case __DRI_ATTRIB_MIN_SWAP_INTERVAL:
*value = 0;
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
case __DRI_ATTRIB_YINVERTED:
*value = GL_TRUE;
break;
case __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE:
*value = GL_FALSE;
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS:
*value = __DRI_ATTRIB_TEXTURE_1D_BIT |
__DRI_ATTRIB_TEXTURE_2D_BIT |
__DRI_ATTRIB_TEXTURE_RECTANGLE_BIT;
break;
__ATTRIB(__DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE, sRGBCapable);
case __DRI_ATTRIB_MUTABLE_RENDER_BUFFER:
*value = GL_FALSE;
break;
__ATTRIB(__DRI_ATTRIB_RED_SHIFT, redShift);
__ATTRIB(__DRI_ATTRIB_GREEN_SHIFT, greenShift);
__ATTRIB(__DRI_ATTRIB_BLUE_SHIFT, blueShift);
__ATTRIB(__DRI_ATTRIB_ALPHA_SHIFT, alphaShift);
default:
/* XXX log an error or smth */
return GL_FALSE;
}
return GL_TRUE;
}
/**
* Get the value of a configuration attribute.
* \param attrib the attribute (one of the _DRI_ATTRIB_x tokens)
* \param value returns the attribute's value
* \return 1 for success, 0 for failure
*/
int
driGetConfigAttrib(const __DRIconfig *config,
unsigned int attrib, unsigned int *value)
{
return driGetConfigAttribIndex(config, attrib - 1, value);
}
/**
* Get a configuration attribute name and value, given an index.
* \param index which field of the __DRIconfig to query
* \param attrib returns the attribute name (one of the _DRI_ATTRIB_x tokens)
* \param value returns the attribute's value
* \return 1 for success, 0 for failure
*/
int
driIndexConfigAttrib(const __DRIconfig *config, int index,
unsigned int *attrib, unsigned int *value)
{
if (driGetConfigAttribIndex(config, index, value)) {
*attrib = index + 1;
return GL_TRUE;
}
return GL_FALSE;
}
/**
* Implement queries for values that are common across all Mesa drivers
*
* Currently only the following queries are supported by this function:
*
* - \c __DRI2_RENDERER_VERSION
* - \c __DRI2_RENDERER_PREFERRED_PROFILE
* - \c __DRI2_RENDERER_OPENGL_CORE_PROFILE_VERSION
* - \c __DRI2_RENDERER_OPENGL_COMPATIBLITY_PROFILE_VERSION
* - \c __DRI2_RENDERER_ES_PROFILE_VERSION
* - \c __DRI2_RENDERER_ES2_PROFILE_VERSION
*
* \returns
* Zero if a recognized value of \c param is supplied, -1 otherwise.
*/
int
driQueryRendererIntegerCommon(__DRIscreen *psp, int param, unsigned int *value)
{
switch (param) {
case __DRI2_RENDERER_VERSION: {
static const char *const ver = PACKAGE_VERSION;
char *endptr;
int v[3];
v[0] = strtol(ver, &endptr, 10);
assert(endptr[0] == '.');
if (endptr[0] != '.')
return -1;
v[1] = strtol(endptr + 1, &endptr, 10);
assert(endptr[0] == '.');
if (endptr[0] != '.')
return -1;
v[2] = strtol(endptr + 1, &endptr, 10);
value[0] = v[0];
value[1] = v[1];
value[2] = v[2];
return 0;
}
case __DRI2_RENDERER_PREFERRED_PROFILE:
value[0] = (psp->max_gl_core_version != 0)
? (1U << __DRI_API_OPENGL_CORE) : (1U << __DRI_API_OPENGL);
return 0;
case __DRI2_RENDERER_OPENGL_CORE_PROFILE_VERSION:
value[0] = psp->max_gl_core_version / 10;
value[1] = psp->max_gl_core_version % 10;
return 0;
case __DRI2_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION:
value[0] = psp->max_gl_compat_version / 10;
value[1] = psp->max_gl_compat_version % 10;
return 0;
case __DRI2_RENDERER_OPENGL_ES_PROFILE_VERSION:
value[0] = psp->max_gl_es1_version / 10;
value[1] = psp->max_gl_es1_version % 10;
return 0;
case __DRI2_RENDERER_OPENGL_ES2_PROFILE_VERSION:
value[0] = psp->max_gl_es2_version / 10;
value[1] = psp->max_gl_es2_version % 10;
return 0;
default:
break;
}
return -1;
}
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