From 64fdfefb9d1136c5f98f3e3b2ba716c224a4d792 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Tue, 17 Jan 2012 08:12:30 -0700 Subject: [PATCH] mesa: use GL_MAP_INVALIDATE_RANGE_BIT in glTexImage paths Update the dd.h docs to indicate that GL_MAP_INVALIDATE_RANGE_BIT can be used with GL_MAP_WRITE_BIT when mapping renderbuffers and texture images. Pass the flag when mapping texture images for glTexImage, glTexSubImage, etc. It's up to drivers whether to actually make use of the flag. NOTE: This is a candidate for the 8.0 branch. Reviewed-by: Ian Romanick --- src/mesa/main/dd.h | 8 +++++++- src/mesa/main/texstore.c | 4 ++-- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h index 24f3d4ca577..8393f328f44 100644 --- a/src/mesa/main/dd.h +++ b/src/mesa/main/dd.h @@ -460,7 +460,8 @@ struct dd_function_table { * \param texImage the texture image * \param slice the 3D image slice or array texture slice * \param x, y, w, h region of interest - * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT + * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT and + * GL_MAP_INVALIDATE_RANGE_BIT (if writing) * \param mapOut returns start of mapping of region of interest * \param rowStrideOut returns row stride (in bytes) */ @@ -489,6 +490,11 @@ struct dd_function_table { GLsizei levels, GLsizei width, GLsizei height, GLsizei depth); + /** + * Map a renderbuffer into user space. + * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT and + * GL_MAP_INVALIDATE_RANGE_BIT (if writing) + */ void (*MapRenderbuffer)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint x, GLuint y, GLuint w, GLuint h, diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index a9c64cedee9..600dab302e9 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -4404,7 +4404,7 @@ get_read_write_mode(GLenum userFormat, gl_format texFormat) && _mesa_get_format_base_format(texFormat) == GL_DEPTH_STENCIL) return GL_MAP_READ_BIT | GL_MAP_WRITE_BIT; else - return GL_MAP_WRITE_BIT; + return GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT; } @@ -4805,7 +4805,7 @@ _mesa_store_compressed_texsubimage2d(struct gl_context *ctx, /* Map dest texture buffer */ ctx->Driver.MapTextureImage(ctx, texImage, 0, xoffset, yoffset, width, height, - GL_MAP_WRITE_BIT, + GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT, &dstMap, &dstRowStride); if (dstMap) { -- 2.30.2